One Audio A4 - User Manual

MIC
Multiple button “O”:
ON/ Off Play / Pause
Volume up /
Next track
Bluetooth indicator
Volume down /
Previous track
Turn On
Turn Off
Pairing
Calling
Micro-USB
Charging
Port
Press the Multiple button “O” until the Bluetooth LED
indicator light turns on, now the earphone is ready to
pair.
Long press the button “O” for 5 seconds until the
working LED flash Blue, and it’s off.
For the initial connection, connect the Bluetooth
earphone (Bluetooth device name: A4) in available
devices on your device in Bluetooth setting. There will
be voice notice within 5 seconds that it has connected
successfully.
Phone call can be made or answered when
connected successfully.
When call comes in, you can simply short press
Multiple button “O” to answer the call or long press to
reject it.
During phone call, short press the button “O” to
end the call. The earphones will resume its previous
working status.
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Summary

Turn On and Off Procedures

Powering On the Earphone

Press the Multiple button "O" until the Bluetooth LED indicator light turns on.

Powering Off the Earphone

Long press the button "O" for 5 seconds until the working LED flashes blue.

Bluetooth Pairing and Calling

Bluetooth Pairing Guide

Connect the Bluetooth earphone (device name: A4) in available devices via Bluetooth settings.

Managing Phone Calls

Answer, reject, or end calls using the Multiple button "O" during an incoming or active call.

Music Playback and Charging

Music Playback Controls

Enjoy music, pause/resume, skip tracks, and control volume using earphone buttons.

Charging Indicator

The charging indicator will be red while charging and turn off when fully charged.

Product Specifications and Contents

Product Specifications

Details battery capacity, working distance, playtime, charging time, and additional specs.

Package Contents

Lists all items included in the package, such as earphones, cables, and tips.

Warnings and Warranty Information

Important Warnings

Includes charging advice, cable usage, and operating during charging guidelines.

Limited Warranty Terms

Covers warranty period, coverage, and exclusions for product defects.

How to Make a Claim

Instructions for contacting support and returning products for warranty service.

Legal Rights and Customer Feedback

Other Legal Rights

Information on consumer rights that may vary by location.

Customer Feedback and Support

Encourages reviews and provides contact information for support.

One Audio A4 Specifications

General

Type	Over-Ear
Impedance	32 ohms
Frequency Response	20Hz - 20kHz
Driver Size	40mm
Cable Length	1.2m
Connector	3.5mm
Weight	220g
Features	Foldable design